Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
060015goodexcellent21excellent
050013goodexcellent11excellent
040014goodexcellent11excellent
030014goodexcellent11excellent
020011excellentexcellent11excellent
010014goodexcellent11excellent
000013goodexcellent11excellent
23009excellentexcellent11excellent
22008excellentexcellent11excellent
21008excellentexcellent11excellent
20005excellentexcellent11excellent
19004excellentexcellent11excellent
18005excellentexcellent11excellent
17009excellentexcellent11excellent
16008excellentexcellent11excellent
15004excellentexcellent11excellent
14005excellentexcellent11excellent
13005excellentexcellent11excellent
12004excellentexcellent11excellent
11005excellentexcellent11excellent
10009excellentexcellent11excellent
09007excellentexcellent11excellent
08008excellentexcellent11excellent
07009excellentexcellent11excellent